Terahertz optical modulator based on metamaterial splitring resonators and graphene

Degl'Innocenti, Riccardo and Jessop, David S. and Shah, Yash D. and Sibik, Juraj and Zeitler, Axel and Kidambi, Piran R. and Hofmann, Stephan and Beere, Harvey E. and Ritchie, David A. (2014) Terahertz optical modulator based on metamaterial splitring resonators and graphene. In: 2014 Conference on Lasers and Electro-Optics, CLEO 2014 :. Institute of Electrical and Electronics Engineers Inc., USA.

Abstract

We realized an optical modulator working at terahertz frequencies, based on the interplay between split-ring resonators and graphene. A modulation depth of about 18% was achieved with a bias voltage as low as 0.5 V.